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Longevity of using the Delphi text DFM format for my own store and retrieve

由 孤街浪徒 提交于 2019-11-30 03:29:47
问题 Over time I've rolled my own formats for saving and loading object properties but on having to revisit this I'm wondering about using Delphi's own text DFM format. I know tha this is really an 'internal' format, but the reader for it now seems pretty well defined and it copes with all types of property. Has anyone any comments about possible pitfalls? 回答1: I wouldn't really say that DFM is an 'internal format'. Sure Delphi uses it internally for forms and datamodules, but TReader and TWriter

powerDesigner jdbc 链接不上mysql 的解决方案

由 我是研究僧i 提交于 2019-11-30 03:03:54
powerDesigner连接数据库时出现的错误，表示找不到JDBC的驱动文件。 Could not load class com.mysql.jdbc.Driver 解决方案： 1. 将 mysql.jar 驱动包 复制到 powerDesigner 的安装根目录下； 2. 修改mysql.jar 驱动包的 配置的指向 到 powerDesigner 的安装根目录的驱动包； 3. 关闭powerDesigner 重新打开即可； 来源： oschina 链接： https://my.oschina.net/u/162199/blog/341093

Side effects of calling Assembly.Load multiple times

由 强颜欢笑 提交于 2019-11-30 00:50:58
问题 If one calls Assembly.Load multiple times does it cause any side effects? e.g. for (int i = 0; i < N; i++) { Assembly.Load(assemblyStrongName); // ....... } This loads the assembly one time doesn't it? I've checked with AppDomain.CurrentDomain.GetAssemblies() before and after and it seems it's loaded one time (as it should) but does it have side effects? In a long running server application (runs for months/years with no restart) does the above cause any issues? 回答1: This loads the assembly

Load jQuery, wait

由 两盒软妹~` 提交于 2019-11-29 23:03:11
问题 I need to dynamically load jQuery and jQuery UI from a javascript, then check if it has loaded and do something afterwards. function loadjscssfile(filename, filetype){ if (filetype=="js"){ //if filename is a external JavaScript file var fileref=document.createElement('script'); fileref.setAttribute("type","text/javascript"); fileref.setAttribute("src", filename); } else if (filetype=="css"){ //if filename is an external CSS file var fileref=document.createElement("link"); fileref.setAttribute

Hide soft keyboard on application load

由 感情迁移 提交于 2019-11-29 21:24:49
I have an application with an EditText element on the main view. This means that when my application is loaded the soft keyboard appears per default. I would like to be able to hide the keyboard on load, so it does not show until i tap on the EditText view. How do i manage this? neteinstein You can do something easier. Add this to the LinearLayout (or any other layout that is the root): <LinearLayout ... android:focusable="true" android:focusableInTouchMode="true" ... /> In your AndroidManifest.xml : <activity android:name="com.your.package.ActivityName" android:windowSoftInputMode=

DB (SQL) automated stress/load tools?

由 旧时模样 提交于 2019-11-29 20:57:22
问题 I want to measure the performance and scalability of my DB application. I am looking for a tool that would allow me to run many SQL statements against my DB, taking the DB and script (SQL) file as arguments (+necessary details, e.g. host name, port, login...). Ideally it should let me control parameters such as number of simulated clients, duration of test, randomize variables or select from a list (e.g. SELECT FROM ... WHERE value = @var, where var is read from command line or randomized per

Delphi: open a zip archive from a stream -> extract to a stream

由 无人久伴 提交于 2019-11-29 19:57:35
问题 Are there any zip components with such features? I need to download a zip archive from the Internet to a stream, then to open the archive from the stream and then to extract files to another stream. E.g. ZipForge can open an archive from a stream ZipForge.OpenArchive(MyStream, false); but how to extract to another one...? procedure ExtractToStream(FileName: WideString; Stream: TStream); Description Use ExtractToStream to decompress data stored in the file inside the archive to a TStream

PHP Get Page Load Stats - How to measure php script execution / load time

由 会有一股神秘感。 提交于 2019-11-29 19:49:29
问题 What I have in the header: $time = microtime(); $time = explode(' ', $time); $time = $time[1] + $time[0]; $start = $time; What I have in the footer: $time = microtime(); $time = explode(' ', $time); $time = $time[1] + $time[0]; $finish = $time; $total_time = round(($finish - $start), 4); echo 'Page generated in ' . $total_time . ' seconds.'; Output: Page generated in 1292008977.54 seconds. Can someone please help me figure out why the result is not right?? I am using PHP5. 回答1: microtime()

XmlDocument.Load fails, LoadXml works:

由 半腔热情 提交于 2019-11-29 19:15:13
问题 In answering this question, I came across a situation that I don't understand. The OP was trying to load XML from the following location: http://www.google.com/ig/api?weather=12414&hl=it The obvious solution is: string m_strFilePath = "http://www.google.com/ig/api?weather=12414&hl=it"; XmlDocument myXmlDocument = new XmlDocument(); myXmlDocument.Load(m_strFilePath); //Load NOT LoadXml However this fails with XmlException : Invalid character in the given encoding. Line 1, position 499. It

Do zombies exist … in .NET?

由 十年热恋 提交于 2019-11-29 18:32:13
I was having a discussion with a teammate about locking in .NET. He's a really bright guy with an extensive background in both lower-level and higher-level programming, but his experience with lower level programming far exceeds mine. Anyway, He argued that .NET locking should be avoided on critical systems expected to be under heavy-load if at all possible in order to avoid the admittedly small possibility of a "zombie thread" crashing a system. I routinely use locking and I didn't know what a "zombie thread" was, so I asked. The impression I got from his explanation is that a zombie thread
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